短語詞組短語proportional flow control valve 比例流量閥;比例式流量閥;比例流量控制閥;比例調速閥ELECTRO PROPORTIONAL FLOW CONTROL VALVE 比例流量控制閥electrohydraulic proportional directional control valve 電液比例方向閥PROPORTIONAL DIRECTION CONTROL VALVE MOOG 件electro -hydraulic proportional flow control valve 電液比例調速閥PROPORTIONAL DIRECTION CONTROL VALVE Rexroth -A 件proportional control flow valve 比例流量閥 返回 proportional control valve